diff --git a/src/components/translations/chronology-era.json b/src/components/translations/chronology-era.json
index fbe9961..f3b8570 100644
--- a/src/components/translations/chronology-era.json
+++ b/src/components/translations/chronology-era.json
@@ -8,7 +8,8 @@
   "options": {},
   "attributes": {
     "title": {
-      "type": "string"
+      "type": "string",
+      "required": true
     },
     "language": {
       "type": "relation",